01 - Drain soaked glutinous rice thoroughly. Transfer to heatproof bowl. Pour in coconut milk, add salt, and incorporate blue pea flower extract if using. Mix until evenly distributed.
02 - Arrange rice in steamer basket. Steam over high heat for 30 to 35 minutes. Stir gently halfway through cooking time to ensure uniform steaming. Continue until grains achieve tender, sticky consistency. Remove from heat and cool slightly.
03 - Combine palm sugar, water, and knotted pandan leaf in saucepan. Heat over medium setting, stirring occasionally until sugar completely dissolves. Extract and discard pandan leaf.
04 - Add grated coconut and salt to sugar syrup. Reduce heat to low. Stir continuously for 5 to 8 minutes until mixture achieves moist but not watery texture. Remove from heat and allow to cool completely.
05 - Place approximately 2 tablespoons steamed rice onto banana leaf square. Press gently to flatten. Top with generous spoonful of coconut mixture. Fold leaf edges to encase filling, leaving top exposed for traditional presentation. Repeat with remaining ingredients.
06 - Serve at ambient temperature or slightly warmed. Best consumed within same day for optimal texture.